One of the main goals of quantum gravity is to provide a better understanding of physics near the big bang and inside black holes where general relativity breaks down. Recently, there has been considerable progress toward this goal in both of the main approaches to quantum gravity. In string theory, this includes string gas cosmology, tachyon condensation, and holographic descriptions using the AdS/CFT correspondence. In loop quantum gravity, space is fundamentally discrete, and evolution in symmetric cosmological models is nonsingular. This three week miniprogram will combine experts in both areas and on the classical approach to singularities to make further progress on this fundamental problem.

His singularity-free version of quantum cosmology is getting to look
kind of standard. Thanks to Christine for this news!

Probably his authorship of the Living Reviews article helped solidify that
and then his writing the Elsevier Encyclopedia of Mathematical Physics
article on Quantum Cosmology http://arxiv.org/abs/gr-qc/0603110

When you write the encyclopedia article on Quantum Cosmology that sort of makes it official that your version is the standard benchmark.